Secondhand & Stock

very rare example of a Zeiss 80mm f/6 Comet Finder, circa 1916. (Astro 30 cat. p.20). I have located only two others that have come up for public awareness in the last few years, one in Austria and another in Lazio, Italy. This brass instrument was designed as a wide-field scope to scan the heavens for comets. Therefore, it was created to operate at lower powers and not for high-powered detailed planetary work. It has a beautiful type "C" objective with a focal length of 49cm, serial #9088. The OTA minimum length is 25" and weighs a robust 25 pounds w/display pedestal. Awesome views of the moon and star fields! brief chain of ownership I have discovered for the Comet Finder. The previous caretaker was Walter Breyer who purchased the scope from Michael Sadigursky in California (1993). I can't find out anything about Mr Sadigursky, but I do know some info of interest about Mr Breyer. Mr Breyer was probably best known as the secretary of the Antique Telescope Society up until his passing. A little known fact about him is that he was a descendant of the founder of Breyer's ice cream which is very popular in USA. Included items: OTA w/objective cell 12cm balance/extension tube Triple eyepiece revolver for 2 - 0.965" oculars plus 40mm Kellner eyepiece Carl Zeiss 25mm Huyghens 0.965"eyepiece Eyepiece slide tube 0.965" Quick-release adapter (female) Quick-release adapters x2 (male) Aperture reducing cover Dew shield OTA clamp/trunions Mounting Fork for 20mm post Brass display pedestal w/20mm post (can be adapted to a tripod) Wooden display base No tripod included

Item condition: used, but with visible cosmetic markings

TS-Optics Ultra Wide Angle Eyepiece 15 mm 1.25" - 66° field of view

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

Wichtiger Hinweis zur Mehrwertsteuer:
Dieses Angebot unterliegt mit Ausnahme der Versandkosten gemäß § 25a UStG der Differenzbesteuerung, weshalb auf den angebotenen Artikel keine Umsatzsteuer erhoben und ausgewiesen wird.

Omegon Color Filter Set 1,25'' (6 pieces)

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

Wichtiger Hinweis zur Mehrwertsteuer:
Dieses Angebot unterliegt mit Ausnahme der Versandkosten gemäß § 25a UStG der Differenzbesteuerung, weshalb auf den angebotenen Artikel keine Umsatzsteuer erhoben und ausgewiesen wird.

Explore Scientific 1,25" O-III Filter

Item condition: new, but not original packed

This hand controller allows precise manual focus, vibration free! Digital Encoder with a Push button The rotary knob simulates the knob of your focuser. Rotate the digital knob and easily focus! Precision can be achieved if you press the knob inside. Speed is reduced to 1:10 just like the fine focus knob of your focuser! A LED indicator for each speed On top of the RJ45 socket there are two LEDs. Green and Orange indicates running speed: coarse or fine focus. Can work simultaneously with the PC operation Just plug the hand controller in the auxiliary port of the FocusCube and enjoy precision in manual focusing without vibrations. No need to remove the hand controller when you use your PC to control the FocusCube. Both can work in parallel. Scope of Delivery: Controller with cable

Item condition: new and original packed

APM MS Bino 34x100 ED APO with fully nitrogen

Item condition: new and original packed

Celestron 200 mm Newtonian with focal ratio 1:5 on EQ5 Mount A universal telescope with much power and comfort The parabolic primary of this 8" Newtonian mirror minimizes spherical aberration to produce a sharper image near the edge of the field of view. This scope is great for intermediate visual observers and beginning astroimagers looking for a large aperture with lots of light-gathering power. As the telescope is meant for users who already have a suitable mount, there is no mount included! The optics An 8" mirror collects a lot of light, increasing the perception of dim celestial objects. The relatively short focal length and the 2" focuser have a positive effect when viewing large objects, as the latter can be seen completely in the large true field of view. Because of the large focal ratio, "hard" nebula filters can be applied when using eyepieces of long focal lenght, resulting in a clearly enhanced contrast. On the other hand, the parabolic primary mirror allows high magnifications - helpful for moon, planets, planetary nebulae ans smaller galaxies. The low obstruction of only 26% gives more contrast, thus having advantages when observing planets. Of course, the fast optics has also advantages in photography, is it reduces the exposure times. The coma, typical for Newtonians, can be eliminated by a coma corrector, achieving high sharpness even in the corners of the image. General Features 8" (200 mm) f/5 optical design with 2" focuser gives excellent wide field views Parabolic primary mirror minimizes spherical aberration to produce a better image Low obstruction gives high contrast Scope of Delivery Telescope Optical Tube Assembly with rings and dovetail bar 9x50 Finderscope 1.25" Eyepiece 20 mm Skywatcher EQ-5 Mount

Item condition: new and original packed

APM ED Apo 8x56 Magnesium Series Binoculars

Item condition: new, but not original packed

Carrying bag 80x15x15 cm

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

Wichtiger Hinweis zur Mehrwertsteuer:
Dieses Angebot unterliegt mit Ausnahme der Versandkosten gemäß § 25a UStG der Differenzbesteuerung, weshalb auf den angebotenen Artikel keine Umsatzsteuer erhoben und ausgewiesen wird.

counterweight 3Kg, Borehole 18mm

Item condition: new, but not original packed

Axis cross EQ3 (old model) With fine adjustment in both axes

Item condition: used, but with visible cosmetic markings

Crayford 3" focuser with 1:10 reduction, 360° rotation. With connection adapter with 108mm threaded connection.

Item condition: new, but not original packed